1. Locate the serial number.
The serial number can be found on several locations on the shotgun. It is typically stamped on the bottom of the receiver or on the barrel.
2. Once you have the serial number, you can look it up in the Browning serial number database.
The Browning website has a searchable database where you can enter the serial number and find the corresponding manufacturing date.
3. If you are unable to find your serial number in the database, you can also contact Browning customer service for assistance. They may be able to provide you with the manufacturing date based on the serial number or other information.